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Artikel ; Online: Frequency-multiplexed on-demand storage in five modes of atomic frequency comb through simultaneous application of control pulses.

Masuko, Taihei / Yoshida, Daisuke / Aida, Ayaka / Hong, Feng-Lei / Horikiri, Tomoyuki

Applied optics

2024 Band 63, Heft 7, Seite(n) 1875–1880

Abstract: In quantum communication with quantum repeaters, multiplexed quantum memory is expected to enhance communication rates. When using an atomic frequency comb (AFC) for on-demand storage, the frequency mode number is often limited by the optical power of ... ...

Abstract	In quantum communication with quantum repeaters, multiplexed quantum memory is expected to enhance communication rates. When using an atomic frequency comb (AFC) for on-demand storage, the frequency mode number is often limited by the optical power of the control pulses. Here, using a space-coupled waveguide electro-optic modulator, we increased the output power, allowing us to apply control pulses to multiple modes simultaneously. Further, through enhancement of an experimental setup that increases power density, we increased the number of modes. Consequently, we pioneered, to the best of our knowledge, on-demand storage using five modes of AFC. This technology is a significant achievement toward frequency-multiplexed on-demand quantum memory.
Sprache	Englisch
Erscheinungsdatum	2024-03-04
Erscheinungsland	United States
Dokumenttyp	Journal Article
ISSN	1539-4522
ISSN (online)	1539-4522
DOI	10.1364/AO.514004
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Stability and bonding nature of positronic lithium molecular dianion.

Ito, Shumpei / Yoshida, Daisuke / Kita, Yukiumi / Shimazaki, Tomomi / Tachikawa, Masanori

The Journal of chemical physics

2023 Band 158, Heft 20

Abstract: We studied the stability of a system consisting of a positron (e+) and two lithium anions, [Li-; e+; Li-], using first-principles quantum Monte Carlo calculations combined with the multi-component molecular orbital method. While diatomic lithium ... ...

Abstract	We studied the stability of a system consisting of a positron (e+) and two lithium anions, [Li-; e+; Li-], using first-principles quantum Monte Carlo calculations combined with the multi-component molecular orbital method. While diatomic lithium molecular dianions Li22- are unstable, we found that its positronic complex can form a bound state with respect to the lowest energy decay into the dissociation channel Li2- and a positronium (Ps). The [Li-; e+; Li-] system has the minimum energy at the internuclear distance of ∼3 Å, which is close to the equilibrium internuclear distance of Li2-. At the minimum energy structure both an excess electron and a positron are delocalized as orbiting around the Li2- molecular anion core. A dominant feature of such a positron bonding structure is described as the Ps fraction bound to Li2-, unlike the covalent positron bonding scheme for the electronically isovalent [H-; e+; H-] complex.
Sprache	Englisch
Erscheinungsdatum	2023-05-26
Erscheinungsland	United States
Dokumenttyp	Journal Article
ZDB-ID	3113-6
ISSN	1089-7690 ; 0021-9606
ISSN (online)	1089-7690
ISSN	0021-9606
DOI	10.1063/5.0150246
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel: [Recurrence of a Giant Emphysematous Bulla After Bullectomy:Report of a Case].

Inoue, Yuta / Yoshida, Daisuke / Yotsumoto, Takuma / Shibasaki, Takamasa / Fukami, Takeshi

Kyobu geka. The Japanese journal of thoracic surgery

2023 Band 76, Heft 12, Seite(n) 1065–1068

Abstract: A 38-year-old male, he was diagnosed with a giant pulmonary bulla occupying 2/3 of the right thoracic cavity on chest computed tomography( CT). The preoperative pulmonary function was unfavorable, so bullectomy of right upper lobe with video-assisted ... ...

Abstract	A 38-year-old male, he was diagnosed with a giant pulmonary bulla occupying 2/3 of the right thoracic cavity on chest computed tomography( CT). The preoperative pulmonary function was unfavorable, so bullectomy of right upper lobe with video-assisted thoracoscopic surgery( VATS) was performed. The outpatient follow-up was completed at 6 months after surgery. However, one year and eleven months postoperatively, the patient returned to the clinic complaining of dyspnea. Chest X-ray and CT showed a recurrence of a giant emphysematous bulla in the right upper lobe. Two years and three months after the initial surgery, the recurrent giant bulla was resected by right upper lobectomy with VATS. About four years after the reoperation, no recurrence of giant pulmonary bulla has been seen. Although there are some reports on surgical treatment and results of giant pulmonary bulla, there are few reports on recurrent cases, so we report this case.
Mesh-Begriff(e)	Male ; Humans ; Adult ; Blister/diagnostic imaging ; Blister/surgery ; Pulmonary Emphysema/diagnostic imaging ; Pulmonary Emphysema/surgery ; Lung/surgery ; Lung Diseases
Sprache	Japanisch
Erscheinungsdatum	2023-12-06
Erscheinungsland	Japan
Dokumenttyp	Case Reports ; English Abstract ; Journal Article
ZDB-ID	603899-2
ISSN	0021-5252
ISSN	0021-5252
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: A comprehensive theoretical study of positron binding and annihilation properties of hydrogen bonded binary molecular clusters.

Yoshida, Daisuke / Kita, Yukiumi / Shimazaki, Tomomi / Tachikawa, Masanori

Physical chemistry chemical physics : PCCP

2022 Band 24, Heft 43, Seite(n) 26898–26907

Abstract: We studied the positron binding and annihilation of hydrogen bonded binary molecular clusters containing small inorganic molecules such as water, hydrogen fluoride, ammonia, hydrogen sulfide, hydrogen chloride, and phosphine, using first-principles ... ...

Abstract	We studied the positron binding and annihilation of hydrogen bonded binary molecular clusters containing small inorganic molecules such as water, hydrogen fluoride, ammonia, hydrogen sulfide, hydrogen chloride, and phosphine, using first-principles calculation. While unimolecular systems of these species mostly exhibit no or very small positron binding energies (positron affinities), we found that all of their hydrogen bonding clusters have greater positive positron affinities. The permanent dipole moment enhanced by the formation of the intermolecular hydrogen bond acts as a dominant parameter to bind a positron for a given proton donor, whereas it is insufficient for reproducing the dependence of the positron affinity on substitutions of the proton donor. By multiple regression analyses with inherent properties of the clusters, we found a reasonable model with additional effective parameters represented by, particularly, the number of hydrogen atoms free from the hydrogen bond. By density analyses for the single-particle and electron-positron collision probabilities, we revealed that these effective parameters are associated with the electronic structure changes induced by the hydrogen bond and positron binding, which have important roles to enhance the electron-positron contact densities due to the proton-screening effect.
Sprache	Englisch
Erscheinungsdatum	2022-11-09
Erscheinungsland	England
Dokumenttyp	Journal Article
ZDB-ID	1476244-4
ISSN	1463-9084 ; 1463-9076
ISSN (online)	1463-9084
ISSN	1463-9076
DOI	10.1039/d2cp03813g
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Odd-Even Reactivity Variation Due to Dynamical Effects around the Roaming Saddle Points of the Reaction Between C

Yoshida, Daisuke / Takahashi, Kaito

The journal of physical chemistry. A

2019 Band 123, Heft 25, Seite(n) 5300–5308

Abstract: Unsaturated carbon cluster chains often have chemical properties depending on the cluster size. While carbon cluster cation chains show odd-even variation in the reactivity with hydrogen, the chemistry of the carbon anion chain has been poorly understood ...

Abstract	Unsaturated carbon cluster chains often have chemical properties depending on the cluster size. While carbon cluster cation chains show odd-even variation in the reactivity with hydrogen, the chemistry of the carbon anion chain has been poorly understood even for the bimolecular reaction with hydrogen. We present a systematic theoretical study based on transition state calculations and molecular dynamics trajectory simulations for the reaction of C
Sprache	Englisch
Erscheinungsdatum	2019-06-17
Erscheinungsland	United States
Dokumenttyp	Journal Article
ISSN	1520-5215
ISSN (online)	1520-5215
DOI	10.1021/acs.jpca.9b03435
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Incidence and characteristics of aspiration pneumonia in the Nagasaki Prefecture from 2005 to 2019.

Tomonaga, Iku / Koseki, Hironobu / Imai, Chieko / Shida, Takayuki / Nishiyama, Yuta / Yoshida, Daisuke / Yokoo, Seiichi / Osaki, Makoto

BMC pulmonary medicine

2024 Band 24, Heft 1, Seite(n) 191

Abstract: Background: Aspiration pneumoniae remains a major health concern, particularly in the older population and has poor prognosis; however, the concept itself remains vague worldwide. This study aimed to determine the actual situation and characteristics of ...

Abstract	Background: Aspiration pneumoniae remains a major health concern, particularly in the older population and has poor prognosis; however, the concept itself remains vague worldwide. This study aimed to determine the actual situation and characteristics of aspiration pneumonia from 2005 to 2019 in Nagasaki Prefecture, Japan. Methods: Cases of aspiration pneumonia that occurred in the Nagasaki Prefecture between 2005 and 2019 were analyzed using emergency transportation records. The number of occurrences and incidence were analyzed according to age, sex, month, day of the week, and recognition time to clarify the actual situation of aspiration pneumonia. Results: The total number of new aspiration pneumonia cases was 8,321, and the mean age of the patients was 83.0 years. Annual incidence per 100,000 population increased from 12.4 in 2005 to 65.1 in 2019, with the most prominent increase in the ≥ 80-year-old stratum. Males (55.1%) were more commonly affected than females (44.9%), and 82.2% of the cases involved patients aged ≥ 70 years. No significant correlations were observed between the incidence of aspiration pneumonia and season, month, or day of the week. Aspiration pneumonia occurred frequently in houses (39.8%) and facilities for elderly individuals (40.8%). At 7 days after admission, 80.9% of patients were still hospitalized and 6.5% had died. Conclusions: The incidence of aspiration pneumonia with risks of severity and mortality is increasing among elderly individuals. Valid preventive measures are urgently needed based on the findings that the disease occurs in both household and elderly care facility settings, regardless of the season.
Mesh-Begriff(e)	Male ; Female ; Humans ; Aged, 80 and over ; Incidence ; Pneumonia, Aspiration/epidemiology ; Pneumonia, Aspiration/etiology ; Hospitalization ; Hospital Mortality ; Japan/epidemiology ; Retrospective Studies
Sprache	Englisch
Erscheinungsdatum	2024-04-20
Erscheinungsland	England
Dokumenttyp	Journal Article
ZDB-ID	2059871-3
ISSN	1471-2466 ; 1471-2466
ISSN (online)	1471-2466
ISSN	1471-2466
DOI	10.1186/s12890-024-03015-8
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Changes in regional oxygen saturation of the kidney and brain of infants during hospitalization.

Yoshida, Daisuke / Shimokaze, Tomoyuki / Kondo, Atsushi / Toyoshima, Katsuaki / Saito, Tomoko

Journal of clinical monitoring and computing

2022 Band 36, Heft 6, Seite(n) 1859–1867

Abstract: Background: In pre-term infants, the postnatal changes in the regional oxygen saturation (rSO: Methods: We performed a prospective observational study. We measured the cerebral/renal rSO: Results: The median cerebral/renal rSO: Conclusions: ... ...

Abstract	Background: In pre-term infants, the postnatal changes in the regional oxygen saturation (rSO Methods: We performed a prospective observational study. We measured the cerebral/renal rSO Results: The median cerebral/renal rSO Conclusions: Unlike in most infants born after the late pre-term period, the renal rSO
Mesh-Begriff(e)	Infant ; Humans ; Spectroscopy, Near-Infrared ; Oxygen/metabolism ; Oxygen Saturation ; Kidney/metabolism ; Brain ; Hospitalization
Chemische Substanzen	Oxygen (S88TT14065)
Sprache	Englisch
Erscheinungsdatum	2022-04-20
Erscheinungsland	Netherlands
Dokumenttyp	Observational Study ; Journal Article
ZDB-ID	1418733-4
ISSN	1573-2614 ; 1387-1307 ; 0748-1977
ISSN (online)	1573-2614
ISSN	1387-1307 ; 0748-1977
DOI	10.1007/s10877-022-00836-y
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Esaxerenone: blood pressure reduction and cardiorenal protection without reflex sympathetic activation in salt-loaded stroke-prone spontaneously hypertensive rats.

Ikeda, Shota / Shinohara, Keisuke / Kashihara, Soichiro / Matsumoto, Sho / Yoshida, Daisuke / Nakashima, Ryosuke / Ono, Yoshiyasu / Matsushima, Shouji / Tsutsui, Hiroyuki / Kinugawa, Shintaro

Hypertension research : official journal of the Japanese Society of Hypertension

2024

Abstract: Mineralocorticoid receptor (MR) is involved in the mechanisms of blood pressure elevation, organ fibrosis, and inflammation. MR antagonists have been used in patients with hypertension, heart failure, or chronic kidney disease. Esaxerenone, a recently ... ...

Abstract	Mineralocorticoid receptor (MR) is involved in the mechanisms of blood pressure elevation, organ fibrosis, and inflammation. MR antagonists have been used in patients with hypertension, heart failure, or chronic kidney disease. Esaxerenone, a recently approved MR blocker with a nonsteroidal structure, has demonstrated a strong blood pressure-lowering effect. However, blood pressure reduction may lead to sympathetic activation through the baroreflex. The effect of esaxerenone on the sympathetic nervous system remains unclear. We investigated the effect of esaxerenone on organ damage and the sympathetic nervous system in salt-loaded stroke-prone spontaneously hypertensive rats (SHRSP), a well-established model of essential hypertension with sympathoexcitation and organ damage. Three-week administration of esaxerenone or hydralazine successfully attenuated the blood pressure elevation. Both esaxerenone and hydralazine comparably suppressed left ventricular hypertrophy and urinary albumin excretion. However, renal fibrosis and glomerular sclerosis were suppressed by esaxerenone but not hydralazine. Furthermore, plasma norepinephrine level, a parameter of systemic sympathetic activity, was significantly increased by hydralazine but not by esaxerenone. Consistent with these findings, the activity of the control centers of sympathetic nervous system, the parvocellular region of the paraventricular nucleus in the hypothalamus and the rostral ventrolateral medulla, was enhanced by hydralazine but remained unaffected by esaxerenone. These results suggest that esaxerenone effectively lowers blood pressure without inducing reflex sympathetic nervous system activation. Moreover, the organ-protective effects of esaxerenone appear to be partially independent of its blood pressure-lowering effect. In conclusion, esaxerenone demonstrates a blood pressure-lowering effect without concurrent sympathetic activation and exerts organ-protective effects in salt-loaded SHRSP. Esaxerenone has antihypertensive and cardiorenal protective effects without reflex sympathetic activation in salt-loaded stroke-prone spontaneously hypertensive rats.
Sprache	Englisch
Erscheinungsdatum	2024-05-27
Erscheinungsland	England
Dokumenttyp	Journal Article
ZDB-ID	1175297-x
ISSN	1348-4214 ; 0916-9636
ISSN (online)	1348-4214
ISSN	0916-9636
DOI	10.1038/s41440-024-01733-4
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Triglyceride-Glucose Index Associated with Future Renal Function Decline in the General Population.

Yoshida, Daisuke / Ikeda, Shota / Shinohara, Keisuke / Kazurayama, Masaya / Tanaka, Shinji / Yamaizumi, Masamitsu / Nagayoshi, Hirokazu / Toyama, Kensuke / Kinugawa, Shintaro

Journal of general internal medicine

2024

Abstract: Background: The triglyceride-glucose index (TyG index), calculated as the logarithmic product of fasting triglyceride and glucose concentrations, is recognized as a simple marker of insulin resistance. However, the association between the TyG index and ... ...

Abstract	Background: The triglyceride-glucose index (TyG index), calculated as the logarithmic product of fasting triglyceride and glucose concentrations, is recognized as a simple marker of insulin resistance. However, the association between the TyG index and future decline of renal function remains unclear in the general population. Objective: To investigate whether the TyG index was associated with future decline of renal function in the general population who had not progressed to chronic kidney disease stage G2. Design: Retrospective longitudinal observational cohort study. Participants: Individuals who received a population-based health checkup at JA Ehime Kouseiren Checkup Center from 2010 to 2019 (n = 134,007). Individuals without data of baseline fasting triglyceride or glucose levels, or baseline and follow-up data of estimated glomerular filtration rate (eGFR), or those with baseline eGFR < 60 mL/min/1.73 m Main measures: Future renal function decline, defined as a ≥ 25% decrease in eGFR from baseline. Key results: Of 10,758 participants, 8,076 were classified into the low TyG index group (TyG index < 8.76, 1st to 3rd quartiles) and 2,682 into the high TyG index group (TyG index ≥ 8.76, 4th quartile). The mean follow-up period was 37.8 ± 23.6 months. The incidence rates of renal function decline were 0.31 and 0.69 per 100 person-years in the low and high TyG index groups, respectively. In multivariate Cox proportional hazard models, high TyG index was significantly associated with future renal function decline (hazard ratio 2.25, 95% CI 1.40-3.60). This association was consistent across subgroups stratified by age, sex, body mass index, baseline eGFR, and diagnosed hypertension, diabetes, or dyslipidemia. Conclusion: In the general population, high TyG index was associated with future renal function decline. The TyG index may be useful in identifying individuals at high risk for future renal function decline in the setting of health checkups.
Sprache	Englisch
Erscheinungsdatum	2024-05-23
Erscheinungsland	United States
Dokumenttyp	Journal Article
ZDB-ID	639008-0
ISSN	1525-1497 ; 0884-8734
ISSN (online)	1525-1497
ISSN	0884-8734
DOI	10.1007/s11606-024-08809-4
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: First-principles quantum Monte Carlo studies for prediction of double minima for positronic hydrogen molecular dianion.

Ito, Shumpei / Yoshida, Daisuke / Kita, Yukiumi / Tachikawa, Masanori

The Journal of chemical physics

2020 Band 153, Heft 22, Seite(n) 224305

Abstract: We studied the positron ( ... ...

Abstract	We studied the positron (e
Sprache	Englisch
Erscheinungsdatum	2020-12-02
Erscheinungsland	United States
Dokumenttyp	Journal Article
ZDB-ID	3113-6
ISSN	1089-7690 ; 0021-9606
ISSN (online)	1089-7690
ISSN	0021-9606
DOI	10.1063/5.0022673
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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